Answer :

(i) We get,

=


=


Hence,


=


Therefore , these linear equations will intersect at one point only and have only one possible solution and pair of linear equations is inconsistent.


(ii) We get,


=


=


=


Hence,


=


Therefore, these linear equations are parallel to each other and have no possible solution.


And pair of linear equations is inconsistent.


(iii)


9x – 10y = 14


We get,


=


=


=


Hence,


=


Therefore, these linear equations will intersect each other at one point and have only one possible solution.


And, the pair of linear equations is consistent.


(iv) We get,


=


=


=


Hence,


=


Therefore these pair of lines has the infinite number of solutions. and pair of linear equations is inconsistent

v) We get,


=


=


=


Hence,


=


Therefore these pair of lines have infinite number of solutions and pair of linear equation is consistent.

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